<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>

  <body>
    <script>
      var xhr = new XMLHttpRequest()
      xhr.open('get', 'http://localhost:3000/first')

      xhr.send()
      console.log('asdads')
      xhr.onload = function () {
        // c2
        console.log('2')
        console.log(xhr.responseText)
      }
      // c1
      console.log('1')
    </script>
  </body>
</html>
